Pig farm feeding system and feeding method

Abstract

The invention discloses a pig farm feeding system and a feeding method. Only one feeding main machine is arranged on the feed conveying pipeline, the feed level sensors are arranged in front of the last N feeding ports of the feed conveying pipeline, and the sum of the feed volume of an inner cavity of the feed conveying pipeline between the feed level sensors and the feed tower and the delayed discharging volume is basically equal to the required volume of a trough at the rear end of the feed level sensors. When the feeding amount in the first feed conveying pipeline reaches half, the opening of the discharging valve on the first feed tower is continuously kept, meanwhile, the opening of the discharging valve on the second feed tower is controlled, and feeding is carried out in the first feed conveying pipeline and the second feed conveying pipeline at the same time; and when the feed level sensor senses the feed, the blanking valve is controlled to be closed. The pig farm feeding system is simple in structure, easy to implement and capable of meeting the requirement for increase of conveying pipelines in all breeding stages of a large-scale pig farm, and the feeding length of a single conveying pipeline can be close to 1.7 times of the overall length of an existing single conveying pipeline.

Description

Technical Field

[0001] The invention belongs to the technical field of pig farm feeding equipment, and in particular relates to a pig farm feeding system and a feeding method. Background Art

[0002] The conventional feeding equipment / system of existing pig farms is mainly composed of feed towers, feed discharge valves, feed lines (i.e. feed conveying pipelines), material level sensors and troughs, but they have the following problems: during use, the feed line will not stop until it is full of feed (i.e. the feed conveying pipeline is full of feed), and the remaining feed in the feed line needs to be pre-emptied before normal feeding at the next start; the load is very heavy when starting feeding, the load is low in the early stage during normal feeding, and the load is heavy in the later stage, and the noise generated is sometimes large and sometimes small, which puts great stress on pigs; the resistance in the feed line is large, the chain is easy to break, and maintenance is difficult; the pellets in the feed line are easy to break, affecting the pigs' feeding; the design length of the feed line and the growth of technical transformation of the feed line are limited, and a single feed line cannot adapt to the increasingly larger pig farms, resulting in the use of the technical route of adding feeding main equipment (feeding host, the feeding host is the most expensive component in the feeding equipment / system) or a full set of feed lines. Summary of the invention

[0003] At least in view of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a pig farm feeding system and feeding method.

[0004] The present invention adopts the following technical solution.

[0005] A pig farm feeding system, including a feed tower and a feed conveying pipeline matched with the feed tower, a feed discharge valve is provided at the feed discharge port of the feed tower, and a material level sensor for sensing feed is provided on the feed conveying pipeline, characterized in that: only one feeding host is provided on the feed conveying pipeline, the material level sensor is provided before the last N feeding ports of the feed conveying pipeline, N ≥ 1 and is an integer, and the sum of the feed volume in the inner cavity of the feed conveying pipeline between the material level sensor and the feed tower and the delayed feed discharge volume is substantially equal to the required capacity of the feed trough at the rear end of the material level sensor. In the preferred embodiment, N is 1 in the fattening pig house, and N is 2, 3 or 4 in the gestation house.

[0006] As one of the preferred schemes, the feed conveying pipeline adopts a single-loop circulation pipeline, and a first material tower and a second material tower are arranged on the single-loop circulation pipeline. The length of the first section of the feed conveying pipeline corresponding to the two material towers is two-thirds of the feeding distance that the feeding host can withstand when the material is stored in the tube, and the length of the second section of the feed conveying pipeline corresponding to the two material towers is the maximum feeding distance that the feeding host can withstand when the material is stored in the tube.

[0007] As the second preferred solution, the feed conveying pipeline adopts two circulation pipelines. The two circulation pipelines share the same feed tower. The two circulation pipelines jointly pass through the corresponding feeding points under the feed tower. Each circulation pipeline is fed from a feeding port under the feed tower. The feed tower is located at the feeding part of the two circulation pipelines. The length of the first circulation pipeline is two-thirds of the feeding distance that the feeding main machine can bear under the condition of pipe storage. The length of the second circulation pipeline is the maximum feeding distance that the feeding main machine can bear under the condition of pipe storage.

[0008] A feeding method for a pig farm feeding system adopting one of the aforementioned preferred solutions, the steps include: Step 11, first control the opening of the feeding valve on the first feed tower, and perform one-way feeding in the first section of the feed conveying pipeline; Step 12, when the feeding amount in the first section of the feed conveying pipeline reaches half, continue to keep the feeding valve on the first feed tower open, and at the same time control the opening of the feeding valve on the second feed tower, and perform feeding simultaneously in the first section of the feed conveying pipeline and the second section of the feed conveying pipeline; Step 13, when the level sensors on each section of the pipeline sense the feed, that is, when the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor and the feed tower and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough behind the level sensor, Control the corresponding feeding valve to close.

[0009] A feeding method for a pig farm feeding system adopting the second of the aforementioned preferred solutions, the steps include: Step 21, first control the opening of the first feeding valve on the feed tower, and perform one-way feeding in the first circulation pipeline; Step 22, when the feeding amount in the first circulation pipeline reaches half, continue to keep the first feeding valve on the feed tower open, and at the same time control the opening of the second feeding valve on the feed tower, and perform feeding simultaneously in the first circulation pipeline and the second circulation pipeline; Step 23, when the level sensors on each section of the pipeline sense the feed, that is, when the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor and the feed tower and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough behind the level sensor, control the corresponding feeding valve to close.

[0010] Furthermore, the first feeding valve and the second feeding valve are arranged side by side, and both the first feeding valve and the second feeding valve are connected to the discharge port of the feed tower.

[0011] Beneficial effects: The pig farm feeding system of the present invention has a simple structure and is easy to implement. Without adding the main feeding equipment (only one feeding host is needed), it can meet the demand for the growth of the conveying pipelines in various breeding stages of large-scale pig farms. The feeding length of a single conveying pipeline can be close to 1.7 times the total length of the existing single conveying pipeline. The same set of pig farm feeding system can be used to feed two types of feed to different types of pigs (especially the case where one conveying pipeline feeds two houses), which solves the problems of large investment and inconvenient material change in the existing pig farm feeding system. During use, the feeding distance of the conveying pipeline is increased without adding a host, which can reduce the feeding time (compared with the existing solution, in the case of one machine with two towers, the time for feeding the same material can be reduced by more than 1 / 3), save energy, and can not only reduce the stress effect of the feeding noise on the pigs, but also solve the problem of easy-to-break jam chain caused by the start of feeding. The granular material in the conveying pipeline is not easy to break. The key is that the pre-emptying process at the start of feeding is omitted, and the feed can be directly fed after starting. The load during feeding is lighter, and the load during normal feeding is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the pig farm feeding system in the embodiment; Figure 2 This is a schematic diagram of the pig farm feeding system structure in Example 1; Figure 3 This is a top view schematic diagram of the pig farm feeding system in Example 2. DETAILED DESCRIPTION

[0013] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0014] Combination Figure 1 As shown, a pig farm feeding system includes a feed tower and a feed conveying pipeline matched with the feed tower, a feed discharge valve is provided at the feed tower outlet, a material level sensor 4 for sensing feed is provided on the feed conveying pipeline, and only one feeding host 7 is provided on the feed conveying pipeline. The material level sensor 4 is provided before the last N (N≥1 and an integer) feeding ports of each section of the feed conveying pipeline, and the sum of the feed volume and the delayed feed discharge volume in the inner cavity of the feed conveying pipeline between the material level sensor 4 and its (the material level sensor 4) upstream feed tower is substantially equal to the required capacity of the feed trough at the rear end of the material level sensor 4, which is substantially equivalent to taking into account the error amount. In this embodiment, the first feed tower 1, the second feed tower 2 and two sections of feed conveying pipelines, namely the first section of feed conveying pipeline 3 and the second section of feed conveying pipeline 8 (Figure 2 The dashed line area in the middle indicates the boundary between the two sections of pipeline. The first level sensor 4 is arranged before the last N feeding ports 10 of the first section of feed conveying pipeline 3, and the second level sensor 4 is arranged before the last N feeding ports 9 of the second section of feed conveying pipeline 8. The sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor 4 on the first section of feed conveying pipeline 3 and the first feed tower 1 and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough at the rear end of this level sensor 4. The sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor 4 on the second section of feed conveying pipeline 8 and the second feed tower 2 and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough at the rear end of this level sensor 4.

[0015] In this embodiment, in combination with Figure 1 and Figure 2 As shown, the feed conveying pipeline adopts a single-loop circulation pipeline. The first feed tower 1 and the second feed tower 2 are arranged on the single-loop circulation pipeline. The length of the first section of feed conveying pipeline 3 corresponding between the two feed towers is two-thirds of the feeding distance that the feeding main machine 7 can bear, and the length of the second section of feed conveying pipeline 8 corresponding between the two feed towers is the maximum feeding distance that the feeding main machine 7 can bear. The feeding method of the pig farm feeding system in this embodiment includes the following steps: Step 11: After starting the feeding main machine 7, first control the opening of the feeding valve 5 on the first feed tower 1 and perform one-way feeding in the first section of feed conveying pipeline 3. Step 12: When the feeding amount in the first section of feed conveying pipeline 3 reaches half (that is, the feed in the first section of feed conveying pipeline 3 reaches the point 13), continue to keep the feeding valve 5 on the first feed tower 1 open, and at the same time control the opening of the feeding valve 6 on the second feed tower 2, and perform feeding simultaneously in the first section of feed conveying pipeline 3 and the second section of feed conveying pipeline 8. Step 13: When the level sensor 4 on each section of pipeline senses the feed, that is, when the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor 4 and the feed tower and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough at the rear end of the level sensor, control the corresponding feeding valve to close. Embodiment 2

[0016] A pig farm feeding system, in combination with Figure 3As shown in the figure, it includes a silo 14 and a feed conveying pipeline matching the silo 14. A blanking valve is provided at the discharge port of the silo 14. A level sensor 4 for sensing the feed level is provided on the feed conveying pipeline. Only one feeding main machine is provided on the feed conveying pipeline. The level sensor 4 is provided before the last N feeding ports of the feed conveying pipeline. And the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor 4 and the silo 14 and the volume of the delayed blanking amount is basically equal to the required capacity of the feed trough at the rear end of the level sensor 4. In this embodiment, the feed conveying pipeline adopts a two-cycle pipeline. The two-cycle pipelines share the same silo 14. The two-cycle pipelines are respectively fed / discharged from two blanking ports under the silo 14. The silo 14 is located at a neighboring part of the two-cycle pipelines. The two-cycle pipelines are essentially two cycles that are crossed by winding / layout of the same cycle pipeline; the length of the first cycle pipeline 11 is two-thirds of the feeding distance that the feeding main machine can bear, and the length of the second cycle pipeline 12 is the maximum feeding distance that the feeding main machine can bear. Among them, the first blanking valve 5 and the second blanking valve 6 are arranged side by side, and both the first blanking valve 5 and the second blanking valve 6 are connected to the discharge port of the silo 14.

[0017] Adopting the feeding method of the feeding system in the pig farm of this embodiment, the steps include: Step 21, start the feeding main machine, control the first blanking valve 5 on the silo 14 to open, and perform one-way feeding in the first cycle pipeline 11; Step 22, when the feeding amount in the first cycle pipeline 11 reaches half (that is, when the feed in the first cycle pipeline 11 reaches point 13), continue to keep the first blanking valve 5 on the silo 14 open, and at the same time control the second blanking valve 6 on the silo 14 to open, and perform feeding in the first cycle pipeline 11 and the second cycle pipeline 12 at the same time; Step 23, when the level sensor 4 on each section of the pipeline senses the feed, that is, when the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor 4 and the silo 14 and the volume of the delayed blanking amount is basically equal to the required capacity of the feed trough at the rear end of the level sensor, control the corresponding blanking valve to close.

[0018] In one of the application scenarios, suppose the total length of the existing feed conveying pipeline in a pig farm is 360 meters, and the maximum feeding distance of the feeding main machine 7 is also 360 meters. The level sensor 4 is located at the last feeding port. With the reconstruction of the pig farm, it is necessary to extend the feed conveying pipeline to 600 meters and match the corresponding feeding troughs. According to the traditional technical route, only 240 meters of feed conveying pipeline, one feed tower, one feeding main machine, and one level sensor can be installed. However, by adopting the solution of the embodiment (taking Embodiment 1 as an example), only 240 meters of feed conveying pipeline, one feed tower, and a blanking valve (i.e., the second feed tower 2 and the corresponding second blanking valve 6) need to be installed, and then the level sensor 4 is adjusted to move forward {for example, one level sensor 4 is set before the last 3 feeding ports (i.e., the third last feeding port) of the first section of the feed conveying pipeline 3, and the other level sensor 4 is set before the last 2 feeding ports (i.e., the second last feeding port) of the second section of the feed conveying pipeline 8}. After the modification, the length of the first section of the feed conveying pipeline 3 is two-thirds of the feeding distance that the feeding main machine 7 can withstand (i.e., 240 meters), and the length of the second section of the feed conveying pipeline 8 is the maximum feeding distance that the feeding main machine 7 can withstand (360 meters). During use, after the feeding main machine 7 is started, first control the blanking valve 5 on the first feed tower 1 to open, and perform one-way feeding in the first section of the feed conveying pipeline 3. When the feeding amount in the first section of the feed conveying pipeline 3 reaches 120 meters, continue to keep the blanking valve 5 on the first feed tower 1 open, and at the same time control the blanking valve 6 on the second feed tower 2 to open, and perform feeding in the first section of the feed conveying pipeline 3 and the second section of the feed conveying pipeline 8 simultaneously. When the level sensor 4 on the first section of the feed conveying pipeline 3 senses the feed, the sum of the feed volume in the inner cavity of the feed conveying pipeline between this level sensor 4 and the first feed tower 1 and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough behind this level sensor 4 (that is, the feed trough corresponding to the last three feeding ports on the first section of the feed conveying pipeline 3), and then control the first blanking valve 5 to close. Similarly, when the level sensor 4 on the second section of the feed conveying pipeline 8 senses the feed, the sum of the feed volume in the inner cavity of the feed conveying pipeline between this level sensor 4 and the second feed tower 2 and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough behind this level sensor 4 (that is, the feed trough corresponding to the last two feeding ports on the second section of the feed conveying pipeline 8), and then control the second blanking valve 6 to close. It can be seen from this that adopting the solution of Embodiment 1 only requires one feeding main machine to meet the feeding requirements of the added feed conveying pipeline.

[0019] In the present invention, a level sensor 4 installed at a specific position (almost all level sensors 4 in the existing solutions are installed at the end of the feed conveying pipeline) is used in combination with a specific feeding mode. When the level sensor 4 senses the feed, the feeding stops, and the remaining feed in the feed conveying pipeline feeds the level behind the level sensor 4. As a result, when starting next time, there is almost no remaining feed in the feed conveying pipeline, which provides protection for the next start and eliminates the need for the emptying process before starting as in the previous improvement. Thus, the feeding main machine 7 and the feeding valve can be started synchronously. When the feeding in the previous section of the pipeline reaches half (i.e., the feeding amount in the first section of the feed conveying pipeline reaches half), the feeding valve of the next section of the pipeline is started to achieve simultaneous feeding in two sections. The feed in the feed conveying pipeline only corresponds to the longest distance for single-machine feeding (because the feeding valve of the previous section of the pipeline has been closed at this time), and then until the feeding in the next section of the pipeline is completed. When the feeding in the first section of the pipeline is completed, no feeding will occur until the feeding in the second section of the pipeline is completed, ensuring the safety of the whole section and the safety during startup, avoiding the risk of chain breakage due to large resistance during startup, and reducing the maintenance probability of chain breakage.

[0020] The pig farm feeding system in the embodiment has a simple structure and is easy to implement. Without the need to increase the main feeding equipment (only one feeding main machine 7 is required), it can meet the growing demand for the length of the conveying pipeline in each breeding stage of modern large-scale pig farms. The feeding length of a single conveying pipeline can be close to 1.7 times the full length of the existing single conveying pipeline; by using the same set of pig farm feeding system, two types of feed can be delivered to different types of pigs (especially in the case of one conveying pipeline delivering to two pig houses), solving the problems of large investment and inconvenient feed change in the existing pig farm feeding system; during use, the feeding distance of the conveying pipeline increases without the need to increase the main machine, which can reduce the feeding time (compared with the existing solution, in the case of one machine with two towers, the feeding time for the same feed can be reduced by more than 1 / 3), save energy, not only reduce the stress impact of the feeding noise on the pigs, but also solve the problem of easy chain breakage caused during feeding startup. The granular feed in the conveying pipeline is not reduced in fragmentation, and crucially, the pre-emptying process during feeding startup is eliminated. Feeding can be directly carried out after startup, and the load during feeding is relatively light, avoiding the disadvantages of large resistance and even larger starting current during startup (compared with the existing conventional feeding solution), reducing the damage to the main motor, and having a more uniform load during normal feeding.

Claims

1. A pig farm feeding system, comprising a feed tower and a feed conveying pipeline matched with the feed tower. A blanking valve is arranged at the discharge port of the feed tower, and a level sensor for sensing the feed level is arranged on the feed conveying pipeline. It is characterized in that: There is only one feeding main machine installed on the feed conveying pipeline. The level sensor is installed before the last N feeding ports of the feed conveying pipeline, where N≥1 and is an integer. And the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor and the feed tower and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough at the rear end of the level sensor.

2. The pig farm feeding system according to claim 1, wherein: The feed conveying pipeline adopts a single-loop circulating pipeline. There is a first feed tower and a second feed tower installed on the single-loop circulating pipeline. The length of the first section of the feed conveying pipeline corresponding between the two feed towers is two-thirds of the feeding distance that the feeding main machine can bear under the condition of the stored material in the pipeline. The length of the second section of the feed conveying pipeline corresponding between the two feed towers is the maximum feeding distance that the feeding main machine can bear under the condition of the stored material in the pipeline.

3. The pig farm feeding system according to claim 1, wherein: The feed conveying pipeline adopts a two-loop pipeline. The two-loop pipelines share the same feed tower. The two-loop pipelines jointly pass through the feeding point under the feed tower. The feed tower is located at the feeding part of the two-loop pipelines. The length of the first loop pipeline is two-thirds of the feeding distance that the feeding main machine can bear under the condition of the stored material in the pipeline. The length of the second loop pipeline is the maximum feeding distance that the feeding main machine can bear under the condition of the stored material in the pipeline.

4. A feeding method using the pig farm feeding system according to claim 2, characterized in that the steps Including: Step 11: First, control the opening of the feeding valve on the first feed tower and conduct one-way feeding in the first section of the feed conveying pipeline. Step 12: When the feeding amount in the first section of the feed conveying pipeline reaches half, continue to keep the feeding valve on the first feed tower open, and at the same time control the opening of the feeding valve on the second feed tower to conduct feeding simultaneously in the first section of the feed conveying pipeline and the second section of the feed conveying pipeline. Step 13: When the level sensors on each section of the pipeline sense the feed, that is, when the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor and the feed tower and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough at the rear end of the level sensor, Control the corresponding feeding valve to close.

5. A feeding method using the feeding system of the pig farm described in claim 3, characterized in that the steps Including: Step 21: First, control the opening of the first feeding valve on the feed tower and conduct one-way feeding in the first loop pipeline. Step 22: When the feeding amount in the first loop pipeline reaches half, continue to keep the first feeding valve on the feed tower open, and at the same time control the opening of the second feeding valve on the feed tower to conduct feeding simultaneously in the first loop pipeline and the second loop pipeline. Step 23: When the level sensors on each section of the pipeline sense the feed, that is, when the sum of the feed volume in the inner cavity of the feed conveying pipeline between the level sensor and the feed tower and the volume of the delayed feeding amount is basically equal to the required capacity of the feed trough at the rear end of the level sensor, control the corresponding feeding valve to close.

6. The feeding method according to claim 5, wherein: The first feeding valve and the second feeding valve are arranged side by side, and both the first feeding valve and the second feeding valve are connected to the discharge port of the feed tower.

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